Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript JavaScript Basics (Retired) Working With Numbers Numbers and Strings

mohammed mayat
mohammed mayat
4,228 Points
Posted by mohammed mayat
mohammed mayat
4,228 Points

Imagine you have 10 <div> tags on a web page. Each div is 190 pixels wide. Using the two variables in this script, creat

I have tried a lot of different answer I am 90% sure the last one is correct, it is still saying bummer

app.js 
var width = '190px';
var numOfDivs = 10;
//var width = '190px'; var numOfDivs = 10; 
//var totalWidth = 'parseInt(width)' * 'numOfDivs';
var totalWidth = 'parseInt(width)' * 'parseInt(numOfDivs)';
index.html 
<!DOCTYPE HTML>
<html>
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  <title>JavaScript Basics</title>
</head>
<body>
<script src="app.js"></script>
</body>
</html>

2 Answers

Huzaifa Sajjad Malik
PLUS
Huzaifa Sajjad Malik
Courses Plus Student 10,823 Points
Huzaifa Sajjad Malik
Huzaifa Sajjad Malik
Courses Plus Student 10,823 Points 
var width = '190px';
var numOfDivs = 10;
//var width = '190px'; var numOfDivs = 10; 
//var totalWidth = 'parseInt(width)' * 'numOfDivs';
var totalWidth = 'parseInt(width)' * 'parseInt(numOfDivs)';//here you are treating both the var as strings you have wrapped them in strings.
Solution:
var totalWidth=parseInt(width) * numOfDiv;
//You Parse strings only so that they are converted to the relevant data-type
mohammed mayat
mohammed mayat
4,228 Points
mohammed mayat
mohammed mayat
4,228 Points

thanks for the quick reponse, still not working

var width = '190px'; var numOfDivs = 10;

var totalWidth = 'parseInt(width)' * 'numOfDivs';

Huzaifa Sajjad Malik
PLUS
Huzaifa Sajjad Malik
Courses Plus Student 10,823 Points
Huzaifa Sajjad Malik
Huzaifa Sajjad Malik
Courses Plus Student 10,823 Points

Bro why are you wrapping the parseInt(width) and numOfDivs in string quotes ' ' just type them without quotes like this just copy and paste this code in the code challenge :) Peace.

var width = '190px';
var numOfDivs = 10;
var totalWidth=parseInt(width)*numOfDivs;
Peter B. Sims
Peter B. Sims
Courses Plus Student 2,896 Points
Peter B. Sims
Peter B. Sims
Courses Plus Student 2,896 Points

Thanks for keeping it simple, Huzaifa Sajjad Malik. Peace